What is the necessity of slave node in Oozie workflow?

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I am new to Oozie and not able to understand what is the major use of slave node in the workflow process? Can anyone explain this?
Jun 11 in Big Data Hadoop by Narayan
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1 answer to this question.

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Hey,

A topology runs in a distributed manner, on multiple worker nodes. The worker node’s role is to listen for jobs and start or stop the processes whenever a new job arrives.

 The workflow and hive scripts should be placed in HDFS path before running the workflow.

oozie job --oozie http://host_name:8080/oozie -D
oozie.wf.application.path=hdfs://namenodepath/pathof_workflow_xml/workflow.xml-run

This will run the workflow once.

answered Jun 11 by Gitika
• 25,340 points

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